Driving rope



Jame 23, 1925. 1,543,063

J. DAWSON DRIVING ROPE Filed Nov. 21. 1924 INVENTOR:

JAMES DAWSON,

y his Attorneys staple or nail.

Patented June 23; 1925.

JAMES Dawson or LINCOLN, ENGLAND, nssrenon TO JAMES nAwsoNiArm son,

' LIMITED, or LINCOLN, ENGLAND. e

' DRIVING ROPE.

Application filed November 21, 1924. Serial No. 751,325.

To all whom it may concern:

Be it known that I, JAMES DAWSON, a subject of the King of Great Britain, residing at Boultham Works, Lincoln, England, have invented new and useful, Improvements in Driving Hopes, of which the following is a specification.

This invention relates to driving ropes of the type comprising a number of flat belts of decreasing size or width superposed upon one another and secured together by rivets.

With belts of this construction it has been found that in some cases the rope has come apart at the centre, that is to say, the upper or wide belts have separated fromthe lower or narrower belts and the rivets have sheared.

According to the present invention the I the nails 7 and 8 are arranged alternately rope is built up from the centre.

Preferably the rivets previously referred to are provided with elliptic or oval stems. In the preferred form of construction this is effected by securing the central belts (preferably two) together, midway between the places at which rivets will be inserted in the finished rope, by means such as staples, Wire nails or the like, the ends of which are clinched, orbent over, then superposing one or more belts (preferably one) above and/or below the central belts and similarly securing them and the central belts together by means such as staples, wire nails or the like, and if there be more belts in the finished rope, similarly adding and securing them so that in the finished rope there are between any two adjacent rivets, staples or wires, decreasing in length from one ri-vet to the point midway between the rivets, and increasing in length up to the next rivet.

Preferably the belts are also stuck together with gum in the usual manner.

In the case of ropes of small section, some of the staples or nails may be omitted or spaced at wider intervals, in which case the staples or nails, on either side of any given staple or nail, preferably secure a greater or a lesser number of belts than the number of belts secured by the said given Obviously the number of staples or nails employed can be varied as may be found desirable.

In the accompanying drawings which illustratethe invention, Figure 1 is a longitudinal section; Figure 2 is a section on the line 2-2, Figure 1; Figure 3 is a longitudinal section of a modification, and Figure 4 is a detail section of one of the rivets.

Referring more particularly to Figures 1 and 2, 1 2 3 4 5 6 show flat balata belts of decreasing widthconstituting a driving rope. The central bolts '3 4 are first secured together by nails 7 the belts 2 and 5 are then superposed and secured by nails 8 which pass through the belts 2 3 4; and 5. The belts 1 and 6 are then superposed and secured by oval rivets 9. The various belts along the belt and spaced at widerintervals, there being. only one nail between each rivet 9. i 7

It is to be understood that the term nails is intended in the claims to cover. nails, staples or the like and'that the term oval stems is intended to cover elliptic stems.

What I claim is 1. In adriving rope, the combination. of a plurality of flat belts of decreasing, width, nails securing the central layers only, nails securing at least oneadjacentbelt to the central layers, .and rivets securing the total number of assembled belts which form the rope.

securing the total number of assembled belts which form the rope.

8. In a driving rope, the combination of a plurality of fiat belts of decreasing width,

nails securing the central layers only, a pair of longer nails spaced apart, located between i the first mentioned nails, and serving to secure at least one adjacent belt to the central layers, and rivets securing the total number of assembled belts which form the rope, the said rivets being located between each-pair of longer nails.

4. In a driving rope, the" combination of a plurality of flat belts of decreasing Width,

nails securing the central layers only, a

pair of longer nails spaced apart, located between the first mentioned nails, and serving to secure at least one adjacent belt to the central layers, and rivets having oval stems securing the total number of assembled belts which form the rope, the" said rivets being located between each pair of longer nails.

' In testimony that I claim the foregoing as my invention, I have signed my name this 28 day of October, 1924.

JAMES DAWSON. 

